BiliBili 直播取流 [M3U8]

Posted on Feb 8, 2026

在 Web 平台上，BiliBili 使用 HLS 协议，提供一个动态刷新的 m3u8 文件以实现直播流的传输。主引索文件可以通过发送附带cid和mid参数的请求获得。

cid: 直播间长 ID

mid: 主播 ID

[GET] https://api.live.bilibili.com/xlive/play-gateway/master/url?cid=<cid>&mid=<mid>

返回示例

#EXTM3U
#EXT-X-CONTENT-STEERING:SERVER-URI="reserved",PATHWAY-ID="https://cn-jxnc-cm-01-39.bilivideo.com",BILI-PATHWAY-PRIORITY="https://cn-jxnc-cm-01-39.bilivideo.com,https://d1--cn-gotcha204b.bilivideo.com,https://cn-jssz-cm-02-74.bilivideo.com,https://cn-jxnc-cm-01-38.bilivideo.com",BILI-CTR-MODE=1,BILI-TTL=150
#EXT-X-STREAM-INF:BANDWIDTH=1382434,RESOLUTION=1280x720,CODECS="avc1.640028,avc1.640028",BILI-ORDER=0,BILI-DISPLAY="超清",BILI-QN=250,PATHWAY-ID="https://cn-jxnc-cm-01-39.bilivideo.com",BILI-STREAM="live_690608693_5023542"
https://cn-jxnc-cm-01-39.bilivideo.com/live-bvc/349602/live_690608693_5023542_2500/index.m3u8?expires=1770550381&len=0&oi=0x24098a550c210dc000000000000005af&pt=android&qn=250&trid=100711865d771a89b85d2ea9f29c88698866&bmt=2&sigparams=cdn,expires,len,oi,pt,qn,trid,bmt&cdn=cn-gotcha01&sign=52df38eb4e41d151bc699663e85776f3&site=e0c17361b5ba8b39d1436ef89dc05f47&free_type=0&mid=516951631&sche=ban&bvchls=1&sid=cn-jxnc-cm-01-39&chash=1&sg=lr&trace=8388681&isp=cm&rg=South&pv=Guangdong&expected_qn=0,0,0&info_source=cache&deploy_env=prod&long_ab_flag=live_default_longitudinal&strategy_id=122&hdr_type=0&codec=0&origin_bitrate=1669&media_type=0&sk=11e6e03140d4fe707653c968459991d30709595305d5a5f68483e2a81ebc11b9&ld=autoqn&source=puv3_master&long_ab_flag_value=test&score=1&pp=rtmp&suffix=2500&flvsk=7b9ca197a822eebb7933bf2a49b49d0ff551d1ce373042b837995692e840d6e6&hot_cdn=909705&long_ab_id=45&strategy_type=1&sl=2&p2p_type=0&strategy_version=latest&vd=nc&zoneid_l=151371779&sid_l=stream_name_cold&src=puv3&order=1
#EXT-X-STREAM-INF:BANDWIDTH=1382434,RESOLUTION=1280x720,CODECS="avc1.640028,avc1.640028",BILI-ORDER=0,BILI-DISPLAY="超清",BILI-QN=250,PATHWAY-ID="https://d1--cn-gotcha204b.bilivideo.com",BILI-STREAM="live_690608693_5023542"
https://d1--cn-gotcha204b.bilivideo.com/live-bvc/349602/live_690608693_5023542_2500/index.m3u8?expires=1770550381&len=0&oi=0x24098a550c210dc000000000000005af&pt=android&qn=250&trid=100711865d771a89b85d2ea9f29c88698866&bmt=2&sigparams=cdn,expires,len,oi,pt,qn,trid,bmt&cdn=cn-gotcha204&sign=d0aacbc6618bcafdac6e768dce5388a3&site=e0c17361b5ba8b39d1436ef89dc05f47&free_type=0&mid=516951631&sche=ban&bvchls=1&trace=64&isp=cm&rg=South&pv=Guangdong&suffix=2500&flvsk=7b9ca197a822eebb7933bf2a49b49d0ff551d1ce373042b837995692e840d6e6&hot_cdn=909705&long_ab_id=45&long_ab_flag_value=test&score=1&pp=rtmp&strategy_type=1&sl=2&p2p_type=0&strategy_version=latest&info_source=cache&deploy_env=prod&long_ab_flag=live_default_longitudinal&strategy_id=122&expected_qn=0,0,0&media_type=0&sk=11e6e03140d4fe707653c968459991d30709595305d5a5f68483e2a81ebc11b9&ld=autoqn&source=puv3_master&hdr_type=0&codec=0&origin_bitrate=1669&vd=bc&src=puv3&order=2
#EXT-X-STREAM-INF:BANDWIDTH=2968287,RESOLUTION=1920x1080,CODECS="avc1.4d4028,avc1.4d4028",BILI-ORDER=1,BILI-DISPLAY="蓝光",BILI-QN=400,PATHWAY-ID="https://cn-jssz-cm-02-74.bilivideo.com",BILI-STREAM="live_690608693_5023542"
https://cn-jssz-cm-02-74.bilivideo.com/live-bvc/346968/live_690608693_5023542_4000/index.m3u8?expires=1770550381&len=0&oi=0x24098a550c210dc000000000000005af&pt=android&qn=400&trid=100711865d771a89b85d2ea9f29c88698866&bmt=2&sigparams=cdn,expires,len,oi,pt,qn,trid,bmt&cdn=cn-gotcha01&sign=1f0d41867e09db304254a95f831259c6&site=e0c17361b5ba8b39d1436ef89dc05f47&free_type=0&mid=516951631&sche=ban&bvchls=1&sid=cn-jssz-cm-02-74&chash=1&sg=lr&trace=8388681&isp=cm&rg=South&pv=Guangdong&suffix=4000&deploy_env=prod&ld=autoqn&long_ab_flag_value=test&sk=abd899906f241e8c24106d90b71e63c1&codec=0&media_type=0&strategy_type=1&hdr_type=0&pp=rtmp&source=puv3_master&score=1&p2p_type=0&flvsk=83a3e6596fa5ad85e9bd49d83400af03&sl=2&strategy_id=122&strategy_version=latest&long_ab_id=45&long_ab_flag=live_default_longitudinal&origin_bitrate=2513&expected_qn=0,0,0&hot_cdn=909705&info_source=cache&vd=nc&zoneid_l=151371779&sid_l=stream_name_cold&src=puv3&order=1
#EXT-X-STREAM-INF:BANDWIDTH=2968287,RESOLUTION=1920x1080,CODECS="avc1.4d4028,avc1.4d4028",BILI-ORDER=1,BILI-DISPLAY="蓝光",BILI-QN=400,PATHWAY-ID="https://d1--cn-gotcha204b.bilivideo.com",BILI-STREAM="live_690608693_5023542"
https://d1--cn-gotcha204b.bilivideo.com/live-bvc/346968/live_690608693_5023542_4000/index.m3u8?expires=1770550381&len=0&oi=0x24098a550c210dc000000000000005af&pt=android&qn=400&trid=100711865d771a89b85d2ea9f29c88698866&bmt=2&sigparams=cdn,expires,len,oi,pt,qn,trid,bmt&cdn=cn-gotcha204&sign=b1dc7d3832440d88374fc3c85c947582&site=e0c17361b5ba8b39d1436ef89dc05f47&free_type=0&mid=516951631&sche=ban&bvchls=1&trace=64&isp=cm&rg=South&pv=Guangdong&p2p_type=0&flvsk=83a3e6596fa5ad85e9bd49d83400af03&sl=2&strategy_id=122&hdr_type=0&pp=rtmp&source=puv3_master&score=1&strategy_version=latest&long_ab_id=45&long_ab_flag=live_default_longitudinal&origin_bitrate=2513&expected_qn=0,0,0&hot_cdn=909705&info_source=cache&sk=abd899906f241e8c24106d90b71e63c1&codec=0&media_type=0&strategy_type=1&suffix=4000&deploy_env=prod&ld=autoqn&long_ab_flag_value=test&vd=bc&src=puv3&order=2
#EXT-X-STREAM-INF:BANDWIDTH=5167204,RESOLUTION=1920x1080,CODECS="avc1.640032,avc1.640032",BILI-ORDER=2,BILI-DISPLAY="原画",BILI-QN=10000,PATHWAY-ID="https://cn-jxnc-cm-01-38.bilivideo.com",BILI-STREAM="live_690608693_5023542"
https://cn-jxnc-cm-01-38.bilivideo.com/live-bvc/690859/live_690608693_5023542_bluray/index.m3u8?expires=1770550381&len=0&oi=0x24098a550c210dc000000000000005af&pt=android&qn=10000&trid=100711865d771a89b85d2ea9f29c88698866&bmt=2&sigparams=cdn,expires,len,oi,pt,qn,trid,bmt&cdn=cn-gotcha01&sign=6746b82ed6d71fcc621e893f70ddfade&site=e0c17361b5ba8b39d1436ef89dc05f47&free_type=0&mid=516951631&sche=ban&bvchls=1&sid=cn-jxnc-cm-01-38&chash=1&sg=lr&trace=8388681&isp=cm&rg=South&pv=Guangdong&p2p_type=0&long_ab_flag_value=test&hdr_type=0&score=1&flvsk=7b9ca197a822eebb7933bf2a49b49d0fda05a1d90eeb730a95fec16224245865&media_type=0&ld=autoqn&pp=rtmp&codec=0&strategy_type=1&sk=11e6e03140d4fe707653c968459991d393aca952e9f26d4184fc6f1531cee2a7&source=puv3_master&long_ab_id=45&long_ab_flag=live_default_longitudinal&sl=2&hot_cdn=909705&strategy_id=122&suffix=bluray&origin_bitrate=2584&expected_qn=0,0,0&info_source=cache&strategy_version=latest&deploy_env=prod&vd=nc&zoneid_l=151371779&sid_l=stream_name_cold&src=puv3&order=1
#EXT-X-STREAM-INF:BANDWIDTH=5167204,RESOLUTION=1920x1080,CODECS="avc1.640032,avc1.640032",BILI-ORDER=2,BILI-DISPLAY="原画",BILI-QN=10000,PATHWAY-ID="https://d1--cn-gotcha204b.bilivideo.com",BILI-STREAM="live_690608693_5023542"
https://d1--cn-gotcha204b.bilivideo.com/live-bvc/690859/live_690608693_5023542_bluray/index.m3u8?expires=1770550381&len=0&oi=0x24098a550c210dc000000000000005af&pt=android&qn=10000&trid=100711865d771a89b85d2ea9f29c88698866&bmt=2&sigparams=cdn,expires,len,oi,pt,qn,trid,bmt&cdn=cn-gotcha204&sign=74cd72665f7486c3d1f855c3c8515b7e&site=e0c17361b5ba8b39d1436ef89dc05f47&free_type=0&mid=516951631&sche=ban&bvchls=1&trace=64&isp=cm&rg=South&pv=Guangdong&deploy_env=prod&suffix=bluray&origin_bitrate=2584&expected_qn=0,0,0&info_source=cache&strategy_version=latest&p2p_type=0&long_ab_flag_value=test&hdr_type=0&score=1&flvsk=7b9ca197a822eebb7933bf2a49b49d0fda05a1d90eeb730a95fec16224245865&media_type=0&ld=autoqn&long_ab_flag=live_default_longitudinal&sl=2&pp=rtmp&codec=0&strategy_type=1&sk=11e6e03140d4fe707653c968459991d393aca952e9f26d4184fc6f1531cee2a7&source=puv3_master&long_ab_id=45&hot_cdn=909705&strategy_id=122&vd=bc&src=puv3&order=2

在#EXT-X-STREAM-INF标签中标明分辨率(RESOLUTION)和画质(BILI-QN)，通过下方的链接可以获取对应画质下的子 m3u8 文件，且内容不断刷新。

一个子 m3u8 示例如下

#EXTM3U
#EXT-X-VERSION:7
#EXT-X-START:TIME-OFFSET=0
#EXT-X-MEDIA-SEQUENCE:1770539728
#EXT-X-TARGETDURATION:1
#EXT-X-MAP:URI="h1770531613.m4s"
#EXT-BILI-AUX:698b02|K|73303|dbf63b3c
#EXTINF:1.00,73303|dbf63b3c
1770539728.m4s
#EXT-BILI-AUX:698ea7|N|28dae|80f22557
#EXTINF:1.00,28dae|80f22557
1770539729.m4s
#EXT-BILI-AUX:6993cc|N|2b0cf|a8f05729
#EXTINF:1.00,2b0cf|a8f05729
1770539730.m4s
#EXT-BILI-AUX:699699|N|1b84e|593274a6
#EXTINF:1.00,1b84e|593274a6
1770539731.m4s
#EXT-BILI-AUX:699a81|N|2089|73adb345
#EXTINF:0.17,2089|73adb345
1770539732.m4s
#EXT-BILI-AUX:699b49|K|69b77|803deeb
#EXTINF:1.00,69b77|803deeb
1770539733.m4s
#EXT-BILI-AUX:699eff|N|1ae9c|2b23bf02
#EXTINF:1.00,1ae9c|2b23bf02
1770539734.m4s
#EXT-BILI-AUX:69a2e7|N|1b11f|1d5eea4a
#EXTINF:1.00,1b11f|1d5eea4a
1770539735.m4s
#EXT-BILI-AUX:69a6df|N|603ee|3240e418
#EXTINF:1.00,603ee|3240e418
1770539736.m4s
#EXT-BILI-AUX:69aae9|N|3c82|3c10d873
#EXTINF:0.17,3c82|3c10d873
1770539737.m4s

#EXT-X-MAP:URI="h1770531613.m4s"作为初始化片段将不会变化，用于提供元数据。

列表内的直播流无法单独播放，需在第一次请求时将初始化片段与列表的直播流拼接，在后续的请求中向末尾追加列表中新的直播流。

列表只储存了文件名；在用于获此子 m3u8 文件的链接中，可以找到完整请求所需的地址。

https://d1--cn-gotcha204b.bilivideo.com/live-bvc/789996/live_690608693_5023542_bluray/index.m3u8?...

live_690608693_5023542_bluray中的_bluray表示这是一个质量为原画的 m3u8 文件(qn = 10000)；相应的，蓝光(qn = 400)的标识为_4000，超清(qn = 250)为_2500

⚡️ Notice
原画不只有 _bluray 这一个后缀，今天发现 _39901278 也会出现在原画的链接中

最后，用上述地址拼接与文件名后发送请求，即可获取一个直播流片段。

wget -O part.m4s 'https://d1--cn-gotcha204b.bilivideo.com/live-bvc/789996/live_690608693_5023542_bluray/1770539728.m4s'

用cat在初始化片段后追加新的直播流

cat h1770531613.m4s 17705397*.m4s  > output.m4s